6221441 has 4 divisors (see below), whose sum is σ = 6276612. Its totient is φ = 6166272.

The previous prime is 6221429. The next prime is 6221459. The reversal of 6221441 is 1441226.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 442225 + 5779216 = 665^2 + 2404^2 .

It is a cyclic number.

It is not a de Polignac number, because 6221441 - 2⁶ = 6221377 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (6221471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27416 + ... + 27641.

It is an arithmetic number, because the mean of its divisors is an integer number (1569153).

Almost surely, 2^6221441 is an apocalyptic number.

It is an amenable number.

6221441 is a deficient number, since it is larger than the sum of its proper divisors (55171).

6221441 is a wasteful number, since it uses less digits than its factorization.

6221441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55170.

The product of its digits is 384, while the sum is 20.

The square root of 6221441 is about 2494.2816601178. The cubic root of 6221441 is about 183.9205804858.

Adding to 6221441 its reverse (1441226), we get a palindrome (7662667).

The spelling of 6221441 in words is "six million, two hundred twenty-one thousand, four hundred forty-one".